Grants per year
Personal profile
Research Interests
Professor Lueptow's current research interests are in three areas: 1) Modeling, simulation, and experiments on the segregation and mixing of bi-and poly-disperse granular materials, both spherical and non-spherical, in quasi-2D and fully 3D geometries; 2) A dynamical systems approach to mixing by "cutting and shuffling," particularly as applied to granular materials; 3) Molecular level simulation of transport processes in polymeric nanofiltration and reverse osmosis membranes.
Education/Academic qualification
Mechanical Engineering, ScD, Massachusetts Institute of Technology
… → 1986
Mechanical Engineering, SM, Massachusetts Institute of Technology
… → 1980
Engineering, BS, Michigan Technological University
… → 1978
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GOALI: Flow driven segregation at the particle level
Lueptow, R. M., Ottino, J. M. & Umbanhowar, P.
10/1/19 → 9/30/22
Project: Research project
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GOALI: Charge Interactions in Transport of Mixed Solutes in Nanofiltration Membranes
7/1/19 → 6/30/22
Project: Research project
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UNS: Controlling mixing and segregation of granular media using unsteady flows
Umbanhowar, P., Lueptow, R. M. & Ottino, J. M.
7/1/15 → 6/30/20
Project: Research project
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Cutting and Shuffling: A New Dynamical Systems Paradigm for Mixing
Ottino, J. M., Lueptow, R. M. & Umbanhowar, P.
9/1/14 → 8/31/18
Project: Research project
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REU Supplement for DynSyst_Special_Topics: A Dynamical Systems Approach to Mixing and Segregation of Granular Matter
Lueptow, R. M. & Ottino, J. M.
5/21/13 → 7/31/14
Project: Research project
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Modeling granular segregation for overlapping species distributions
Gao, S., Ottino, J. M., Umbanhowar, P. B. & Lueptow, R. M., Feb 15 2021, In: Chemical Engineering Science. 231, 116259.Research output: Contribution to journal › Article › peer-review
2 Scopus citations -
Modelling segregation of bidisperse granular mixtures varying simultaneously in size and density for free surface flows
Duan, Y., Umbanhowar, P. B., Ottino, J. M. & Lueptow, R. M., 2021, In: Journal of fluid Mechanics. 918, 342.Research output: Contribution to journal › Article › peer-review
3 Scopus citations -
Predicting segregation of nonspherical particles
Jones, R. P., Ottino, J. M., Umbanhowar, P. & Lueptow, R. M., May 2021, In: Physical Review Fluids. 6, 5, 054301.Research output: Contribution to journal › Article › peer-review
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Axisymmetric granular flow on a bounded conical heap: Kinematics and size segregation
Isner, A. B., Umbanhowar, P. B., Ottino, J. M. & Lueptow, R. M., May 18 2020, In: Chemical Engineering Science. 217, 115505.Research output: Contribution to journal › Article › peer-review
6 Scopus citations -
Granular flow in a wedge-shaped heap: Velocity field, kinematic scalings, and segregation
Isner, A. B., Umbanhowar, P. B., Ottino, J. M. & Lueptow, R. M., May 1 2020, In: AIChE Journal. 66, 5, e16912.Research output: Contribution to journal › Article › peer-review
5 Scopus citations